(1):

(v. t.) To despatch; to send forth; to issue officially.

(2):

(a.) Expeditious; quick; speedily; prompt.

(3):

(v. t.) To relieve of impediments; to facilitate; to accelerate the process or progress of; to hasten; to quicken; as, to expedite the growth of plants.

(4):

(a.) Free of impediment; unimpeded.